LTC1605IG 查看數據表（PDF） - Linear Technology
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LTC1605IG Datasheet PDF : 16 Pages
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LTC1605
TYPICAL PERFORMANCE CHARACTERISTICS
LTC1605 Nonaveraged 4096 Point FFT Plot
0
–10
– 20
f SAMPLE =100kHz
– 30
f IN =1kHz
SINAD =87.5dB
– 40
THD =–101.7dB
– 50
– 60
– 70
– 80
– 90
–100
–110
–120
–130
0
5
10
15
20
25
30
35
40
45
50
FREQUENCY (kHz)
1605 • TPC07
SINAD vs Input Frequency
90
89
88
87
86
85
84
83
82
81
1
10
100
INPUT FREQUENCY (kHz)
1605 • TPC08
Total Harmonic Distortion vs
Input Frequency
– 70
–80
–90
–100
–110
1
10
100
INPUT FREQUENCY (kHz)
1605 • TPC09
PIN FUNCTIONS
VIN (Pin 1): Analog Input. Connect through a 200Ω
resistor to the analog input. Full-scale input range is
±10V.
AGND1 (Pin 2): Analog Ground. Tie to analog ground
plane.
REF (Pin 3): 2.5V Reference Output. Bypass with 2.2µF
tantalum capacitor. Can be driven with an external refer-
ence.
CAP (Pin 4): Reference Buffer Output. Bypass with 2.2µF
tantalum capacitor.
AGND2 (Pin 5): Analog Ground. Tie to analog ground
plane.
D15 to D8 (Pins 6 to 13): Three-State Data Outputs.
Hi-Z state when CS is high or when R/C is low.
DGND (Pin 14): Digital Ground.
D7 to D0 (Pins 15 to 22): Three-State Data Outputs.
Hi-Z state when CS is high or when R/C is low.
BYTE (Pin 23): Byte Select. With BYTE low, data will be
output with Pin 6 (D15) being the MSB and Pin 22 (D0)
being the LSB. With BYTE high the upper eight bits and
the lower eight bits will be switched. The MSB is output
6
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